True or False 9. The number of protons will tell you what element it is. 10. The Atomic Mass - (minus) The Atomic Number tells you the number of protons in an element. 11. If an element is an ion, it has more or less neutrons than usual. 12. Elements in the same vertical column are called Periods. 13. The 3 groups of the periodic table are metals, non-metals, and gases. Help please:))) sorry im not really good with physical science:(
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Physics, 21.06.2019 18:10
Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?
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Which branches of natural science include the study of an organism that lived 10 million years ago
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Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.
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True or False 9. The number of protons will tell you what element it is. 10. The Atomic Mass - (minu...
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